如何在功能测试中模拟 Symfony 2 服务? [英] How to mock Symfony 2 service in a functional test?

问题描述

我有 symfony 服务，它在某些方法中使用 redis 连接，但不是在所有方法中.

I have symfony service which uses redis connection in some methods but not in all methods.

class ServiceA
{
    private $redis;

    public function __construct($redis)
    {
        $this->redis = $redis;
    }

    public function getRequest($param1, $param2)
    {
    $result = $param1+ $param2;
        return $request;
    }

    .. other methods which use $redis connection
}

我正在为仅使用 getRequest 方法(此方法不需要 redis 连接)的代码编写功能测试，但由于构造函数将连接作为参数，当我运行测试时，它尝试连接 redis 服务器.

I am writing functional test for the code which use only getRequest method (this method does not need redis connection) but as the constructor takes the connection as an argument, when I run test it tried to connect redis server.

如何编写完全不使用 redis 连接并忽略原始构造函数的模拟服务.

How can I write mock service which does not use redis connection at all and ignore original constructor.

我正在尝试下面提到的方法，但没有成功.即使我禁用了原始构造函数，它仍然尝试连接 redis.

I am trying approach mentioned below but no success. It still tries to connect redis eventhough I have disabled original constructor.

http://blog.lyrixx.info/2013/04/12/symfony2-how-to-mock-services-during-functional-tests.html

$serviceA = $this->getMockBuilder('ServiceA')
    ->disableOriginalConstructor()
    ->getMock();

static::$kernel->getContainer()->set('my_bundle.service.a', $serviceA);

推荐答案

在创建 ServiceA 模拟之后，您需要将它传递给客户端的容器(不是内核的容器，因为客户端对象构建了自己的核心).试试这个:

After you create ServiceA mock, you need to pass it to client's container (not the one from kernel's because client object builds its own kernel). Try this:

$client = self::createClient();

$serviceA = $this->getMockBuilder('ServiceA')
    ->disableOriginalConstructor()
    ->getMock();

$client->getContainer()->set('my_bundle.service.a', $serviceA);

请注意，每次发出请求时都必须注入此模拟服务.这是因为客户端在每两个请求之间重建内核.

Pay attention, that you must inject this mocked service every time you make a request. It's because the client rebuilds kernel between each two requests.

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